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ICD-10-CM 2027 diagnosis code

S26.021Moderate laceration of heart with hemopericardium

Not billable — use a more specific codeRequires 7th character

S26.021 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S26.021

S26.021 is the ICD-10-CM diagnosis code for moderate laceration of heart with hemopericardium. It belongs to category S26 (injury of heart), block S20-S29 (injuries to the thorax) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S26.02 (laceration of heart with hemopericardium), S26.021 is specifically for moderate laceration of heart with hemopericardium. Related codes cover mild laceration of heart with hemopericardium (S26.020) and major laceration of heart with hemopericardium (S26.022).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category S26

Coding notes

Applicable toConditions and synonyms classified to this code
  • Laceration of heart with penetration of heart chamber

Notes that apply from higher levels

Instructions written at a parent level also apply to S26.021.

› From S26 Injury of heart
Code also
  • any associated:
  • open wound of thorax (S21.-)
  • traumatic hemopneumothorax (S27.2)
  • traumatic hemothorax (S27.1)
  • traumatic pneumothorax (S27.0)

Broader instructions also apply from S20-S29 Injuries to the thorax and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to S26.021.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S26.021

Is S26.021 billable?

No. S26.021 is a header code. Report one of its more specific subcodes instead.